Tamping machine



May 18 ,ml926.

2 sheets-sheet 1 Illu! J. A. JOHNSON TAMPING MACHINE Filed August 17,

2 Sheets-Sheet 2 May 18 1926.

4 J. A. JOHNSQN TAMPINQMACHINE Filed August 17 1925 Patented May 18, 1926.

incassa JOHN A. JOHNSON, OF SLEOKANE, TASHINGTON, ASSGNOR 0F ONE-HALF TO ADOLPH NELSON, OF HUGO, COLORADO.

TAMIING MACHINE.

Application filed August 17, 1925.

The present invention relates to improvements in tamping machines for use in laying railway tracks and for repairs in the maintenance of the railway roadbed. The invention contemplates a portable machine of the car-mounted type, which is provided with a motor adapted selectively to propel the machine andato operate its tamping tools. The invention consists in certain novel combinations and arrangements of parts involving the use of two series of tamping tools carried by an oscillatable frame, together with meansfor reciprocating the frame and its tools transversely of the railway whereby the tiesare tamped throughout their full length. Means are also provided for vertically adjusting the frame and its tools, and mechanism is employed for adjusting the eri'treme outertamping tools or shovels to accommodate them kto tiesof variouscross sectional dimensions.' These and other meritorions features of the invention will hereinaftenbe more specificallyA set forth and claimedfi ln the accompanying drawings I r have illustrated' one complete example of the physical embodiment of my invention wherein the parts are combined and arranged according to the best mode I have thus far devised for the practical application of the principles of my invention.

Figure l is atop plan view of a carl mounted tampingmachine 4embodying my invention. y

Figure 2 is a view in side elevation ofthe machine with the tamping tools shown in dotted line positions.

rFigure 3 is an enlarged detail'perspective view illustrating one of the tamping tools and a part of the tool frame.

Figure t is a top plan view, with yparts omitted, as at line P-4t of Figure 2 showing features of the tool frame, which is partly brokenv away for convenience of illustration. ln carrying out my invention the machine is mounted on a wheeled truck or car that is adapted to be propelled under power along the railway to the place of construction work, and the truck includes two longitudinally extending side'beams 1 and Zihaving oi'itwardly oifset'portions 3 that preferablyv project beyond the rails R. Fourwheels inf dicate'd as' are provided for thetruolr or car, two of which are'driven fro'nlmthe-driv` are of the rails and the beam is adapted to slide Serial No. 50,573.

course conform to the gage of the railway. A propeller shaft 7 extending longitudinally of the truck is driven from the motor 8 for propelling the truck, and a hand control lever .9 is indicated for controlling the travel of the truck under propulsion.

The tamping machine carried by the truck is selectively driven from the propeller shaft and a clutch lever l0 and clutch l1 on the shaft, together with a worm gear l2, are used to transmit the power of the shaft to a crank gear 13 complementary to the worm gear 13. A pitman 14 connected to the crank gear is used to rock or oscillate the,

tamping machine as will be described.

At the rear and front respectively of the truck, platforms l5 and 16 are fashioned of -transversely disposed boards that are seyseries of spaced, intermediate bars 19, all

preferably of angle iron and rigidly connected together as will be described.

The cross bars of the tool frame are rigidly secured as by bolts to a transversely are y ranged channel beam'20 located at the longitudinal center of the frame, and as stated transversely arranged with relation to the rails. This beam and the attached tool frame adapted to reciprocate transversely on the supporting channel beam 2l. As seen in Figure 3 the top channel beam is provided with a pair of spaced slots 22, and the under channel beam 2l is provided with bolts 23 passingthrough bolt holes in the beam 2l and through the slots in the beam 20. The slottedl beam and frame are manfually reciprocated on the stationary supporting beam 21 t uough manipulation of a lever- 24 pivoted at 24a and provided"y with chains 241 that are anchored to vcross bars of the tool frame, onel at each side of the`trans i. verse center of theframe.- o It ywill beappar.- 1'ent that' by swinging the leyerfl'aterally"in etV Figures l and #t the tool Ytrame and its tools may be reciprocated in order that the tools may tamp the roadbed alongT both sides ot;4 the tie 'from one end to the other end of the tie.

The tamping action ot the tools.` is caused b v an oscillating or rocking` motion imparted to the tool `trame trom the pitman iat, and tor this purpose the beam 2i is litted over a rock sha't extending transversely ot the rails and provided with end bearings 26 which bearings are bolted rigidly to the end hars 1S ot the frame.

The rock shaft is located vsithin a pair ot' inverted U-shaped brackets QT spaced apart and bolted on top ot' the oii'set portions ot the side beams ot' the truck. jrs best seen in Figure 4 the brackets are each provided with a pair oi' opposed vertical `grooves 2S, and Within each bracket the rock sha'tt is provided vvith a loose sleeve or collar 9.9 havingr a pair et outwardly extending', xenical plates or Wings 30 that are vguided in lthe complementary grooves ot' the brackets. The sleeves, loose on the shalt, are thus nonrotatable, but move vertically with the shaft when the Jframe is lovvered or raised. rllhe tool 'frame and its tools may be eicvated to inoperative position vvhen not required for use and While the machine is traveling, or the tool trame may be adjusted vertically to bring` the tampingl tools at various heights along` the sides of the tie to be tamped. For vertically adjusting' the trame and tivo series ot tools an operating lever 3l vvhich is counected by a cable 32, is utilized. This lever, as is also the lever 2i. is pivoted on a cross brace A which rigidly connects the t\vo brackets 27, as best seen in Figure l. As seen in Figure Q a crank arm S3 depends from the underside otl the rock shaft, and the pitman 14; is pivotally connected thereto at 34 t'or oscillating the tool 'trame and tools as indicated by dotted lines in Figure 2.

l preferably employ tivo series of camping tools or shovels indicated by the numerals and 3G. one at each side ot the tie T and spaced at regular intervals along the opposite sides ot the tool frame. The tools arl preferably of metal with tlatblades that eK- tend transversely ot the rails, and each blade is provided vvith a fiat shank 37 ivhich may be fashioned by twisting` it to a plane at right angles to the plane ot the blade or shovel. The tamping tools are carried by the several spaced cross bars ot the tool trame. and the Shanks of the tools are adjustable ivith relation to these cross bars. For this purposethe vertical flanges o'l the cross bars are provided .vith slots near their ends, and retaining bolts 39 are passed through bolt holes in the shanks and through the slots, and clampingr nuts 39 are used .to clamp the shank against the flange o'tthe har.,v The-tools-maythus baadjusted toward or avvay from the longitudinal center ot the transversely arranged tool trame and adjusted in the same relation to the tie to be tampcd.

The tivo side bars et' the tool 'frame are also adjustable toward and avvay Jfrom the longitudinal center ot' the tool t'ranic to adapt these bars to the. adjusted Shanks ot the tools t'or supporting' the shanks. For this purpose the h'orizontal flanges of the angle iron cross bars are slotted as at 40 near their respective ends. and clamping bolts el are passed through bolt holes in the side bars and through the slots of the cross bars. The Shanks o't' the tools are thus supported within. an angle termed by the side bars and cr ss hars ot the tool frame, and the tools are nniintained in proper position `tor tampiiml 'vvhcn the tool trame is rocked or oscillatcd.

Frequently the ends of a tie are of less cross sectional area than the body of' the tie, i. e. the ends are smaller than the body, or either one of the ends may be smaller than the body of the tie. To adapt the two end pairs of tamping tools to the smaller part of the tie, these tools may be drawn in toivard the tie for tamping it. For this purpose the lever 24 is provided with a pair of radius rods 42 that extend outwardly from the longitudinal center of the tool frame and at their outer ends the rods are provided with connecting plates 43 from which radiate pivoted links t4 that are pivoted to the tvvo end pairs of tamping tools. As the lever 24 is swung to reciprocate the tool trame and tools transversely of the rails it will be apparent that these end tamping tools are moved toward and away from the tie in addition to the rocking movement that is applied to the tool frame. for operating the tools.

As the tampinr continues during the mechanical operation of machine the tools may be gradually elevated,by manual means, with relation to the tie being tamped to accommodate the material being.,r ted or shoveled into the bed at both sides of the tie. The lateral reciprocation of the frame and tools may be controlled with facility by manipulating the hand lever 24, and after one tie has been properly tamped the truck may be moved to position with the tamping trame over an adjacent tie for a repetition of the tamping operation.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent isl. In a tamping machine the combination, vvith a'tool frame and tamping tools suspended therefrom, of' means for rockingr said frame, means for laterally reciprocating said frame and tools, and means for vertically adjusting said frame and tools. l

2L lna-tam-ping machine the-combination with a tool frame having a rigid longitudinal central beam, of a supporting beam upon which said central beam is slidable, a rock shaft beneath the supporting beam, and means for rocking said frame.

3. In a tamping machine the combination with a main frame and a pair of spaced brackets thereon, of a shaft, nonrotatable sleeves on said .shaft and guides on said sleeves co-acting with said brackets, a tool frame and means for supporting said shaft from said frame, and means for rocking said frame in said sleeves.

4. In a tamping machine the combination with a main frame and a pair of spaced brackets thereon, of a shaft, non-rotatable bearing sleeves on said shaft having guide plates engaging grooves in said bracket, a tool frame supported on said shaft, means for rocking said frame, and means for vertically adjusting said frame and shaft.

5. The combination with a supporting beam and a beam supported to reciprocate thereon, of a tool frame rigid With said reciprocal beam, means for moving said frame on the supporting beams, and means for simultaneously oscillating said` tool frame.

6. T ie combination With a supporting beam, of a slotted reciprocal beam thereon having a bolt connection therewith, a tool iframe rigid with the slotted beam, means for reciprocating the tool frame, and means for oscillating said frame.

7. In a camping machine the combination with a tool frame and tamping tools suspended therefrom, otl means for rocking said trame means for laterally reciprocating said frame and tools, means for vertically adjusting said frame and tools, and means for relatively adjusting end pairs of tools as described.

In testimony whereof I aihx my signa- JOHN A. JOHNSON.

` ture.

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